HM91210-The Intergrated Circuit of PC Dialing

Published:2011/5/10 9:47:00 Author:Borg | Keyword: Intergrated Circuit, Dialing | From:SeekIC

HM91210 is an intergrated circuit of PC dialing which is used in all kinds of phones. 1.functions features HM91210 contains sub-circuits of pulse/tone coupling with dialing circuits, key switch signal encoding, etc. 2. pin functions and relevent data The pin functions and data of HM91210 are listed in Table 1. Table 1-1. pin functions and relevent data of the HM91210 intergrated circuit



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